Average annual temperature is 12.2 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -17.5 °C
Number of sunny days: 190 days
Number of rainy days: 162 days
Number of snow days: 13 days
Look at detailed online map of Custer
* Weather data for Custer United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15.1 | 13.7 | 21.9 | 26.0 | 31.5 | 34.7 | 35.1 | 36.6 | 33.0 | 28.9 | 22.2 | 15.2 |
| Average daytime temperature (°C) | 3.9 | 7.0 | 9.5 | 18.2 | 24.8 | 29.3 | 28.8 | 28.5 | 25.4 | 18.1 | 10.7 | 7.6 |
| Average temperature (°C) | -0.3 | 1.4 | 3.9 | 11.0 | 18.2 | 22.9 | 23.5 | 23.0 | 20.0 | 13.2 | 5.6 | 3.6 |
| Average night temperature (°C) | -3.0 | -2.6 | -0.3 | 5.2 | 11.9 | 16.6 | 18.5 | 18.4 | 15.6 | 9.3 | 1.4 | 0.9 |
| Absolute minimum temperature (°C) | -17.5 | -16.3 | -12.1 | -1.4 | 2.0 | 9.5 | 14.2 | 11.2 | 9.7 | -2.3 | -10.7 | -8.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.3 | 7.4 | 6.5 | 9.5 | 10.9 | 12.6 | 12.3 | 10.6 | 9.1 | 7.1 | 7.4 | 4.6 |
| Precipitation (mm) | 59 | 75 | 90 | 62 | 95 | 15 | 151 | 116 | 157 | 87 | 27 | 66 |
| Sunny days | 10 | 17 | 16 | 15 | 19 | 20 | 14 | 15 | 13 | 14 | 22 | 15 |
| Rainy days | 12 | 9 | 15 | 15 | 12 | 10 | 17 | 16 | 17 | 16 | 8 | 15 |
| Snow days | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
The best time to visit Custer during the most sunny months:
The largest precipitation sum in Custer is at